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MULTI-MASTER Endmill Heads

General Notes
MULTI-MASTER is a family of tools with shanks and interchangeable cutting heads for a variety of
machining applications: milling, countersinking, spot and center drilling, and slitting.
The MULTI-MASTER design approach bases upon a thread system of the unique profile,
centering by a short precise taper and a face contact. A MULTI-MASTER head has a cutting part
and a back connection with the external thread and the taper, which screws into a shank with the
corresponding internal thread and the taper until final securing when the back face of the head
cutting part will contact the face of the shank.
This principle of coupling ensures strength and rigid clamping of a wide range of the
interchangeable heads. The MULTI-MASTER tools meet the requirements of high accuracy
because the head geometry is finished by precise grinding and the connection guarantees high
concentricity within very close limits. In addition, the tools are simple-to-operate, because the
heads are quickly replaced by easy rotation of an applied key. Moreover, they answer to strict
requirements of repeatability, and thus, replacement of the heads does not require
additional adjustment.

Milling Tools
The MULTI-MASTER family features a large variety of heads, shanks and extensions. The basic
concept is, when a shank can carry heads of different shapes and accuracy, this allows dramatic
increase of tool versatility and will diminish needs for special tools. A huge stock of tools is not
necessary. Resharpening of tools is no longer needed, because a worn-out cutting head is simply
replaced. The family renders a possibility of numerous tools by an unlimited combination of the
heads and the shanks and therefore, excellently answers the demands of die and mold making
and reduces procurement cost.

No setup time advantages
Repeatability of an assembled mechanical system with interchangeable elements means that a key
parameter of the system remains in agreed limits in case of replacing an interchangeable element of
the same type. For the standard MULTI-MASTER tools, repeatability in tool length is about 0.04 mm
for the milling heads of normal accuracy and about 0.02 mm for the precise milling heads.
That is why there is no need for additional adjustment in tool length after replacing a head; and the
head can be replaced when a shank remains clamped in a machine tool spindle without new
presetting. No setup time for replacement considerably cuts cycle time and is a good source
for increasing productivity.

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